[jira] [Created] (PHOENIX-4189) Avoid direct use of ObjectInputStream in Hive integration

["Josh Elser (JIRA)" <ji...@apache.org>]

Josh Elser created PHOENIX-4189:
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             Summary: Avoid direct use of ObjectInputStream in Hive integration
                 Key: PHOENIX-4189
                 URL: https://issues.apache.org/jira/browse/PHOENIX-4189
             Project: Phoenix
          Issue Type: Bug
            Reporter: Josh Elser
            Assignee: Josh Elser
             Fix For: 4.12.0


Another security scan ding, but not a very big concern.

We use ObjectInputStream to serialize/deserialize a Map which contains the columns+values of the primary key constraint. The problem with ObjectInputStream is that it doesn't care what Class it deserializes. If a malicious user can someone coerce some unknowing user to use an InputSplit that has this specially crafted class, we can get into an arbitrary code execution.

https://www.ibm.com/developerworks/library/se-lookahead/ outlines a way to work around this issue in code, but it leaves a bit to be desired. The ObjectInputStream recursively calls itself as it deserializes the fields in the Object. By trusting some classes from the packages java.lang, java.util, and java.sql, I believe we can remove this minor concern.



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